Motor surfing apparatus



May 14, 1929.

C. O. JOHNSON MOTOR sURFING APPARATUS Filed July 9, 1925 Patented May 14, 1929.

UNITED STATES PATENT OFFICE.

MOTOR SUR-FING APPARATUS.

Application filed July 9, 1926. Serial No. 121,295.

This invention relates to a motor propelled aquaplane or suril board and has for its object to provide a device of this character which is extremely simple in construction and which may be operated and controlled with a minimum of' elliort.

The invention is illustratively exemplified in the accompanying drawing, in which, Fig ure l is a perspective view oi my improved motor propelled surf board in operation; Figure 2 is a longitudinal sectional view of the same; Figure 3 is a plan view of the device; and Figure showing the double keel and propelling medium.

Referring to the drawings, l denotes the deck which is constructed ot a fiat piece et metal and upon which the bather lies when being supported. The craft itself is virtually a hollow arrangement with the deck l Vlor a top and a curved under wall for a bottom 2. the latter tapering upwardly at the :front to form a nose. The bottom 2 is made of one or more pieces of metal and shaped in such a way as to have a curve or wide groove 3 upwards along the centre from about the middle to the back or stern 1i. The sides l0 taper 'from say one and a half inches deep at the :front to about one toot at the stern. The rear oi the craft is provided with a centrally disposed extension l2 which straddled by the swimmer who is also protected from coming in contact with the propelling means by a cage or guard il which is supported between the walls l0 and just rearwardly of the propeller 7 Inside the scouter a small electric` oil or other motor 5 is lined which drives a shaft (3 having a screw running along outside baule wards under the curve. At the trent on the top are placed the starter 8, wheel and other controllers of the mot-or. The motor air inlet and exhaust pipes 9 9a, one disposed within and spaced from the other and carried above the `scouter and swimmer,

4t is a rear view ot the craft On the scoutcr being launched in the sea, river or lake, the swimmer lies on the scouter with the lower parts of his legs extending backwards beyond the stern of the scouter. He starts the motor and the scouter propelled by the screw races along the surface of the water and the swimmer steers by extending his right or left leg in the water according to whether he wishes to prooecd to the right orleft. From the shape or lines oit' the scouter it rises over waves and the faster .it is driven the higher does the bow tend to rise and accordingly the swimmers head is not splashed by the water.

The foregoing description of the construction ot' the parts and their application is given. only by way oli' example and the construction and shape of the parts and their attachments and movements may be modified or altered as may be found desirable and the invention is not limited to the precise construction and arrangement of parts hereinl. afore described as the saine may be varied without the invention being departed from.

Having now particularly described and ascertained the nature of the said invention in what manner the same is to be performed I declare that what I claim is A motor surfing apparatus, comprising a floatinfT bod f arovided with a fiat deck sidev b l 7 walls, and a bottom wall bent and curved to form a tapered channel at the rear thereof, the side walls being` inclined and joined to the walls of the channel to form tapered spaced keels V-shaped in cross section at the stern of the apparatus, a power screw arranged in said channel, a motor disposed in the floating body and connected to said screw, Y

and connection with the motor to admit air and exhaust gases above the deck and in ad Vance ot the rider.

In testimony whereof I have aiixed my sig nature.

CHARLES OCEAN JOHNSON. 

